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I have a 2008 Exige S240 with no engine mods.
I've been logging IAT through OBD2 port via Torque Pro app for some time, and I've noticed that it gets unreasonably(?) high by the end of the session.
I have a few hypotheses:
1. Stock intercooler is getting heat soaked.
2. IAT is being overrun by blow-by vapor and is reading higher than the actual value.
3. All system is normal, the IAT sensor is just reading wrong.
4. Torque App is wrong.
My guess is either 1 or 2, because the IAT usually starts off at ambient temperature and starts climbing up, as well as losing up to 10degC when I'm not on throttle in the corners after the straightaways.
2 is a possible suspect if I get more than a few drips of oil inside when I take the intercooler off for cleaning and inspection.
So, the question becomes, what kind of IAT is considered 'acceptable'?
What strategy does the car employ when it sees high IAT? (pulling timing after certain temperature threshold?)
Is the maximum figure relative to ambient temperature? (ex: 80degC IAT at 20degC/68F ambient is bad but, 95degC IAT at 46degC/115F is acceptable???)
How high of IAT have you all seen in your car, and how did you combat it? Any before/after figures?
I'll either be getting a 3 chamber shroud or just upgrade to proalloy or RLS intercooler in the future, but I'd like to hear some thoughts on this.
I've been logging IAT through OBD2 port via Torque Pro app for some time, and I've noticed that it gets unreasonably(?) high by the end of the session.
I have a few hypotheses:
1. Stock intercooler is getting heat soaked.
2. IAT is being overrun by blow-by vapor and is reading higher than the actual value.
3. All system is normal, the IAT sensor is just reading wrong.
4. Torque App is wrong.
My guess is either 1 or 2, because the IAT usually starts off at ambient temperature and starts climbing up, as well as losing up to 10degC when I'm not on throttle in the corners after the straightaways.
2 is a possible suspect if I get more than a few drips of oil inside when I take the intercooler off for cleaning and inspection.
So, the question becomes, what kind of IAT is considered 'acceptable'?
What strategy does the car employ when it sees high IAT? (pulling timing after certain temperature threshold?)
Is the maximum figure relative to ambient temperature? (ex: 80degC IAT at 20degC/68F ambient is bad but, 95degC IAT at 46degC/115F is acceptable???)
How high of IAT have you all seen in your car, and how did you combat it? Any before/after figures?
I'll either be getting a 3 chamber shroud or just upgrade to proalloy or RLS intercooler in the future, but I'd like to hear some thoughts on this.